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Finding the Fourth Proportional to 665.02, 997.54 and 226.78

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Solution

The fourth proportional to 665.02, 997.54 and 226.78 is: 340.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    665.02 : 997.54 = 226.78 : x
  2. Step 2: Convert to fraction form
    665.02/997.54 = 226.78/x
  3. Step 3: Cross multiply
    665.02x = 997.54 × 226.78
  4. Step 4: Simplify right side
    665.02x = 226,222.12
  5. Step 5: Solve for x
    x = 226,222.12/665.02
  6. Step 6: Final answer
    x = 340.17

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